Stitch-separating machine.



PATBNTED MAY 19, 1908.

J. B. HADAWAY. STITCH SEPARATING MACHINE.

APPLIOATION FILED 'JUNE 2, 1905.

3 SHEETS-SHEET 1.

No. 888,083. PATENTED MAY 19, i903. J. B. HADAWAY.

STITCH SEPARATING MACHINE.

APPLICATION FILED JUNE 2,1905.

3 SHEETS-SHEET 2.

PATENTED MAXY 19, 1908.

` J. B. HADAWAY.' s'flfieu SEB/RATING MACHINE.

PPLOATIOI'( FILED JUNE 2,1905.

3 SHEETS-SHBET 3.

E? ,as ,as

Uiviritio sriirns reinen;

Joni: B. niniwii'r, or inzoomen,

MACHINERY coMPiiNY, messi'.

STITCH-SEPARATING MAOHN'E.

Specification of Letters .Potent Patented Mey 19, 1908.

Application filed June 2, 1905.A Serial No. 253,363.

T 0 all whom it may concern.'

Be it known that i, JOHN B. HADAWAY, n

citizen of the United States, residing at.

Brockton, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Stitch Separating Machines; and l do hereby de- Clare the followingl to he riiull, clear, and eX- ect description of the invention, such es will enable others skilled in the nrt to which it e pvI )eiteins to ineke and use the same.

The present invention lrelates to stitch separating machines `which ere used in the .manufacture of slices to indent the intervals between the stitches appearing on the upper surface of the edge of the sole so ns to bring the stitches into prominence and impart a finished appearance i' o this portion of the shoe.

Machines adapted to operate. upon o Afinished seam to indent the intervals between the stitches are complicated in construction and slow in operation es compared with Inachines which ere adapted to forni ornamental indentntions in imitation of stitches upon the soloI edge oli shoes 'which ere not rovided with en outseern or in which the stitches of the outseein are sunk in si. `groove or channel. ln the 'letter cless of machines iin indenting Wheel is usually einployed provided with teeth shaped and spu ed to produce the desired 'form of indents ons, this Wheel being mounted so es to rotate on its exis as the Work passes beneath the Wheel. The use of en indenting ,vheel ennhles these machines to be operated at a hit i rete of speed and to he` constructed in on e: err-.ely simple and compeet nin-nner. lt has heretofore heen found to be imprecticiihle to use such on indentinfc,T Wheel for operetinf" upon n linished senin since the stitches nil hoot ond shoe work vary more or less in length :ind when it is attempted to ect upon s linished senin with en indent i i li. olZ tl f i l) crowns end injuring or spo The principel oh, tion is to provide L. .ig machine adep tedv to operete upon the stitches oi' n finished seein which is as simple in construction sind as rapid in operation as machines which have been heretofore i "ed for :forming im.- pression or imitation Other objects ol' the invention :ire in {gcneral to improve the construction and mode of operation oi' stitch separating machines.

lWith these objects in view the present invention contemplates the provision in a stitch separating nnichine of e stitch seperating nud indcnting wheel provided 'with n series of teeth formed ond spaced to permit rclntivc slipping movement between the Wheel oud the Work when the stitches very in length to cruise each tooth to locate itself in the interval between two stitches.

The invention also contemplates providing the wheel with ii series of grooves to shape the crowns oi' the stitches, the Urooves being so she-pcd ond spaced with relation to the teeth :is to cooperate with the teeth in mitting o relative slipping movement between the Wheel and the Work to ceuse the grooves to locate themselves upon the crowns of the stitches.

Rotary stitch separating :nid indenting tools or Wheels have heretofore heen devised, such for instance, as fire disclosed in applicent-s prior pe.' nits No. lotii, lated October 1512, 1805 and No. 664/105, dated Decenihcr 25, '1900. These Wheels have, howextending itch sepnroting blades adapted to move e, iin relation to each other in loceting the stitch intervels. The Wheel which forms the principi l feature ol the present inve'ntioiris Cleary distinguished 'troni such Wheels in that the teeth oi" the wheel are not mounted 'to .move independenllj,` of each other c :ire so iorn'ied und arranged, that the location oi the teeth in the sti ch intervals is produced hy the relative slippino' movement of the `wheel end work. embodying the presentinvention is distinguished therefrom in that it i provi( ed with grooves ed upon end shape the croi .ln the ii'oodiii whee 'lurther its per' ot the engage i :inde relative slipping movement of the Wheel end Work is permitted es each stitch intel ifi-l or stitch c. tictednpon. @n recount oi1 the smell diameter of the stitch seperntin@ .L

'and indenting 4wheel means in additionv t o that usually employed'in impression or imivided. Broadly considered the invention is not limited to a construction in which these additional means are provided'but the pro.- vvisioen' of these means is deemed` preferable 1 and constitutes a feature' of the invention.

" ln its preferred form the stitch se arating wheel is provided with a periphera surface ccnvexly curved lengthwise or' the wheel in Iorder that the teeth. which project from the vperipheral surface of the wheel may act to is better advantage upon the stitches oi the seam, and a stitch se arating and indenting wheel having its perip ieral surface curved in this 4manner constitutes a feature oi the invention.

The machine hereinafter specically described is provided with upper and lower work supports, the lower work support being adjustable to change the angle oi the work engaging surface with relation to the work vengaging surface ofthe upper work support. in order to change ythe character oi the indentations' made by the stitch separating and indenting Wheel and to adapt the machine ior'operation upon certain styles of work the stitch''sepafratingl and indenting wheel is adjustahly mounted so that its angular positionl with relation to the work engaging'surface of the upper work. support can vbe varied., adpiustment of the stitch separatirny and indenting wheel with relation to the upper work support constitutes a feature of the present invention which is also applicable to machines provided with other 'forms of stitch separating and indenting tools, or to machines adapted for making impression or imitation. stitches.

@tha{saturer-i:` oi the present invention consist in certain devices, con'ibinations and arrangements ci parte hereinafter described and claimed, the adva tages ci whicli will be obvious to those skilled in the art :from the following description. y

Thepreierred form oi" the present invention is illustrated in the accompanying drawings in which Figure i isa view in side elevation oi' a stitch separating and indenting machine embodying the same; Fig.

2 is a view in iront elevation illustratingthe manner in which the stitch separating and indenting wheel is mounted.; Fig. 3 is a view in side elevation partly-in ,scctin'oi' the parts illustrated'in Fig. 2; Fig. 4 is a detail view showing a portion of a shoe in cross section and the stitch separating and indent-ing wheel in position to act upon the stitches of the outseam and Figs. 5 and 6 are diagrammatic views illustrating the actionof the indenting wheel in separating the stitches and in indenting the stitch intervals and shaping 'the crowns of the stitches. I

The machine illustrated inthe drawings to which the present invention has been applied Ais similar in the construction, arrangement and-mode of operation of many oi its parts to an' impression or imitation stitch machine disclosed in an application iiled by the present applicant of even date herewith, but it is to befundersitood that the invention isnot limited to this machine but is capable of being embodied in many different kinds oi' machines and maybe applied to many of the stitch separating machines and to many of the imitation or impression stitch machines c which have heretofore been devised.

The machine illustrated in the drawings is provided with a yieldingly mountedlower work support, with an adjustable upper work support, with a spring pressed lever upon which the stitch separating and indenting wheel is mounted and by which the wheel is kept constantly in engagement with the work, and with a vibratory hammer lever which acts to deliver a series of blows in rapid succession upon the Wheel carrying lever thereby causing the stitch separating and indenting wheel to deliver'. a series of blows upon .the work. These parts are constructed and arranged in the manner disclosed in the application above referred to but since they are illustrated in thev drawings accompanying this application they'will be brieilji/f described herein. y

'Referring 'the drawings, i indicates the lower work support which is frusto conical in shape and is mounted'I to rotate on a stud projecting from a block 2. The block 2 is pivotally mounted at 3 upon the upper end of a vertical slide l and is provided with an arc shaped slot 5 through which a securing bolt `ti passes whereby the block Z can be adjusted to change the angular position oithe work engaging suriace oi the .lower work support with relation to the adjacent surfaces oi' the upper work support and the separating and. indenting wheel. The slide fl is yieldingly supported by means or' a spring 7 coiled around a rod 8 which. projects downwardly 9,"`

from the slide through an adjusting sleeve and is provided below the sleeve withan adjustable stop nut l0, by means of which the upward movement of the slide and the work support is limited. whenno worlr is in the ma- -The lever moves freely upon its pivot and is acted upon by a coiled spring 13 which is connected to an arm le projecting below the lll. l

#pivot -ofthe'lever.1 By means of this spring `*the*v upper end'of thejlever 11 is pressed K t ')`.i`vfa"r ds1-the 'lower `work support and "the" stitch separatinrl and indenting wheel isheld j `yieldingly yin contact with the work. 'stop eveiffI 1' and vlimit`- the 4`downward movement essfse 'pin'l' isfa'rrangedrto engage the arm 14 of the A-i'o, the 'stiftc'hseparating and indenting wheel when-'iro W'ork is `inthe machine.

lThe 'vibrating hammer lever for actuating *the levenl lftocause the stitch separating "andtin'denting'wheel to deliver a. series of fblotvsinfitpid succession upon the work is ,"i'ndiclated at "16; This lever is. pivotally "mountedtpn theshaft 12 by means of two n arrvnsfwhich extend'pon opposite sides of the lever'll." At its upper end the lever 16 is providedwith an'adjustable block 17 which is arranged to contact with the block 18 upon bratin'g'i'novement is imparted to the lever 16 'by means'pof a' cam 19 upon the driving shaft the upper end otjthfe lever 11. A rapid vi- 20, which cam engages blocks 21 mounted in thefforked rear end 'of the lever. The stop pin 1'5 sozarranged that when no work is in the machine'the block 1S is out of the path of 'movement of the block 17 so that when no work is inthe machine the stitch separating and indenting wheel remains stationary. When Work iskinserto'd 1n the machine the llever llis movedttj bring the block 18 intov the path of movement of the bloc-k 17.

The upper work support is indicated at 'andis ysecured to ablockZS so as to be capa- `ble of aninward Aand outward adjustment, Theblock 23 issecnredto the frame ofthe nachine so as to be capable of a vertical adn' Referring now to the constructions illustrated the drawings which embody the several featuresy of the present invention, 24 indicates lthe stitch separating and indenting Wheel which as shown is of small diameter as Compared with. thebsize, ofteeth upon its periphery, rlwhe shape and arrangementof the te'thand grooves of the wheel andthe mannerin which thevwheel acts to locate the .teeth in the stitch intervals and the grooves upon the crowns ofthe st-itcheswill be clearly' [the `:stitch interval at .each side completely indented, 28 as'titch which is being v acted upon by thewheel in Fig. 5 andwhich l has been ooinpletedin Figg,k and 29 a stitch u'flncliis 'being acted upon by the wheel in both figures. At the stage'of tlie'operation indicated in Fig. 5l it will be noted that the tooth 30 of the wheel has freed itself from lthe indentationbetween the stitches 27 and 28, that the tooth 31 is acting upon the interval between the stitches 28 and 29 and that ally the other teeth of the wheel are above the surface of the work. The tooth 31 is the only tooth which is firmly in engagement with the work and, consequently, a relative slipping movementof the wheel and work isA permitted to Vallow the tooth to locate itself in the interval between the stitches 28 and 29 in case the stitches are longer or shorter than the average,

In Fig. 6 the wheel is re resented as having rotated to bring the toot e 31 into a vertical position and to bring the tooth-32 into engagement with'the work. At this stage of `the operation the groove between teeth 30 and 31 is out of engagement with the stitch 28, the stitch 29 is in engagement with the groove between teeth 31 and 32 and the stitch 26 adjacent tothe stitch 29 is out of engagement with `the groove between the tooth 32 andthe tooth 33. The groove between the teeth 3l' and 32 is the only groove ot the wheel which is firmly in engagement with theI work and, consequently, at this stage of .the operation a relative slipping movement of the wheel-and work is permitted' to allow the groove ofthe wheel to locate vitself upon the crown of the stitch.

The wheel 24 is of such small diameter that instead of being mounted to rotate upon a iixed stud as is usual in impression or imitation stitch machines it is preferably provided with a stud 34 projecting from its inner end', which stud is mounted to rotate in a block secured to the upper end of the lever l1. The stud is held from longitudinal movement by means of a transverse pin 36 which engages a groove in' the rear end of thestud. On account of the small diameter of the lwheel 24 and stud 34 it is preferable that means in addition to the stud be provided for supporting the wheel against the thrust of the work. In the construction illustrated in the drawings these means Vconsists of a guard plate 37 secured to the block 35 and projecting downwardly lover the outer end of the indenting wheel. At its lower end l and upon its inner surface the guard plate is provided with a recess which receives the understood from an inspection of `Figsp5 and I outer end of the wheel and with a bearing 6. A'In these figures 25 indica tifs the work, 26 stud 3S which pro the stitchesofthe seam which havenot been' the end of the' Wheel.

acted u oni by. the. wheel, y27"V a stitchthe 4To insure the engagement of the teeth of ,crown'o which has been completely shaped the stitch separating and indenting vwheel jects into a' holedrilledin with the stitches of the seam the 'peripheral surface of the wheel upon Iwhich the teeth are formed is preferably convexly curved longitudinally of the wheel. The advantages of this construction will be clearly apparent from van inspection of Fig. 4.

In the construction illustrated in the drawings an. angular adjustment vof the stitch separating and indenting Wheel with relation to the work engaging surface of the upper work support is secured by mounting the block 35 in a segmental slot in the up er end of the lever 11, the slotbeing curved) arc of a circle, the center of which is at the lower outer edge of the wheel. At the rear of the slot which receives the block 3.5 the lever 11 is provided with a narrow slot and throu h this portion of the lever two clamping bo ts 39 pass by means of which the block can be secured in any position to which it is adjusted. This angular adjustment of the stitch separating and indenting wheel permits the wheel to be placed in suchva position as to act to. the best advantage on the stitches of the seam and also adapts the machine for operation upon styles of work which cannot be o erated u on satisfactorily by adjusting the ower wor r support. This adjustment of the stitch separating and indenting wheel also permits a change in the character of the indentations produced by the wheel.

The nature and scope of the present invention having been indicated and a preferred embodiment of the invention having beeny specifically described, what is claimed is 1. 'A stitch separating and indenting wheel provided with a series of stitch separating and indenting teeth upon its periphery immovable with relation to each other shaped and spaced to permit a relative slipping movement between the wheel and the work to allow each tooth to locate vitself in the interval between two stitches whether the stitches are of uniform or varying length.

2. A stitchv separating and indenting wheel provided upon its periphery with a series of teeth to indent the stitch intervals and with a series o f grooves to shape the crowns of the stitches, the teeth and grooves being shaped and spaced to permit a relative slipping movement between the Wheel and the work to allow the teeth tolocate themselves in the stitch intervals and the grooves to locate themselves on the crowns of the stitches, whether the stitches are of uniform or varying length. j

3. A stitch separating and indenting wheel provided with a peri heral surface convexly curved lengthwise o the wheel, and with a series o f teeth rojecting from said surface, immovable with relation to each other and shaped and spaced to permit a relative slipping movement between the wheel ,and work' in theto allow each tooth to locate itself in the in- -terval between two stitches, whether the stitches are ,of uniform or varying length.

4. A stitch separating and indenting machine, having, in. combination, a lower work support, an upper work support, anindenting tool, and means for adjusting the angular position of the working face of the tool with relation to the work-engaging surface of the upper work support. v

5. A stitch separating and indenting wheel provided with a series of stitch se arating and indentingteeth upon its'perip ery immovable withrelation to each other,- and shaped and spaced to permit a relative slipping movement between 'the wheel and the work to allow each tooth to locate itself in the interval between-two stitches, whether the stitches are of uniform or varying length, a supporting stud for the wheel, and means in addition to said stud for supporting the wheel against the thrust of the work.

. 6. A stitch separating 'and indenting wheel provided with a series of stitch separating `'and indenting teeth upon its periphery iinmovable with relation to eachother, and shaped and spaced topermit a relative sli ping -moveen 'betweenl the wheel and tfi work to allbw each tooth'tolocate itself in the intervalrahetween two "stitches, whether.v

the stitches are of uniferm or varyin length, and means for supporting the wheel at each end against. the thrust ofthework.

, 7. Astitch separatingand indenting wheel provided with a series of stitch separating .and indenting teeth upon its periphery, i'mv 'movable with relation to each other, and,

:sov

shaped and spaced to permit a relative sli ping movement between the wheel and t e work to allow each tooth to locate' itself in the interval between two stitches, whether the stitches are of uniform or varyinglength, a supporting stud for the wheel, and a guard extending over the outer endvv of the wheel having provision for supporting the lwheel against the thrust of the work.

8. A stitch separatingand indenting Wheel provided with a series of stitch separating and indenting teeth upon its periphery irn-` movable With relation to e'ach other, and

shapedand spaced to permit a relative slipping movement between the wheel and the work to -allow each tooth/to locate itself in the interval between two stitches, whether the stitches are of uniform or varying length, a supporting stud rigid with the wheeh and projected from its-inner end, and means in addition to the stud for supporting the wheel against' the thrust of the work. 9. A stitch separating and indenting wheel provided with a series of stitch separating and indenting teeth upon its eriphery im- A movable with relation to eac other, and

shapedand spaced to 4permit a relative .slip-I p'mmovement 'between the wheel and the end of the wheel against the thrust of the Woi to allow each tooth to locate itself in Work. 10

the interval between two stitches, whether In testimony whereof I affix my signature. fthe-stitches are of uniform or varying length,` in presence of two witnesses.

a supporting stud integral with the wheel l JOHN B'. HADAWAY.

dmidprojeeting from its inner end,. and aguard Witnesses extending vover the outer end ofthe wheel FRED O. FISH, provided with a stud for supportingthe outer FARNUM F. DORSEY. 

